* {
	margin: 0;
	padding: 0;
}
.w {
	width: 1000px;
	margin: auto;
}

p {
	text-indent: 2em;
	
}

.header {
	height: 60px;
	margin: 30px auto;
	background-color:gainsboro;
}

.nav {
	float: left;
}
.nav ul li {
	list-style: none;
	float: left;
	margin-left: 20px;
	margin-top: 20px;
	display: block;
}

.nav-link{
	color: black;
	text-decoration: none;
	font-size: 20px;
	text-align: center;
}

a:hover {
	color: brown;
}
.home {
	background: url(../img/QQ图片20201124222915.jpg);
	height:100%;
	width: 100%;
	overflow: hidden;
	background-size: 100%;
}
h1{
	text-align: center;
	color: white;
}

.photo{
	width: 400px;
	height: 200px;
	float: left;
	padding-top: 10px;
	margin-left: 100px;
	margin-bottom: 10px;
}
img{
	max-height: 100%;
	max-width: 100%;
}
.ahtml {
	background:url(../img/QQ图片20201124191121.jpg);
	height:100%;
	width: 100%;
	overflow: hidden;
	background-size: 100%;
}

.text1 {
	width: 400px;
	height: 200px;
	padding-right: 100px;
	word-break: break-all;
	float: right;
	color:white;
	padding-top: 15px;
}
.text2 {
	width: 800px;
	height: auto;
	padding-right: 100px;
	padding-left: 100px;
	word-break: break-all;
	float: left;
	color:white;
}
.m{
	color: darkgray;
	font-size: 25px;
	
}

.box4{
	padding-left: 100px;
}
.text3{
	width: 800px;
	height: auto;
	word-break: break-all;
	float: left;
	color:white;
}
.bhtml {
	background:url(../img/QQ图片20201124190750.jpg);
	height:100%;
	width: 100%;
	overflow: hidden;
	background-size: 100%;
}
.photo2{
	width: 300px;
	height: 200px;
	float: left;
	padding-top: 10px;
	margin-left: 100px;
	margin-bottom: 10px;
	
}
.text4 {
	width: 480px;
	height: 200px;
	padding-right: 100px;
	word-break: break-all;
	float: right;
	color:white;
	padding-top: 15px;
}